The Indian Society of Heating Refrigerating and Air Conditioning Engineers (ISHRAE) is dedicated to advancing the fields of heating, refrigeration, and air conditioning through various events and publications. The organization hosts international and national expositions, seminars, and workshops with the primary goal of promoting knowledge and innovation in these areas. ISHRAE's main objective is to enhance the technical expertise and proficiency of professionals working in heating, refrigeration, and air conditioning. By organizing expos, seminars, and workshops, ISHRAE provides opportunities for industry experts to come together, share knowledge, and discuss the latest advancements in technology and practices. One of the key ways in which ISHRAE supports its mission is through the publication of technical guides and handbooks that cover a wide range of topics related to air conditioning, refrigeration, and ventilation. These resources serve as valuable references for professionals in the field, offering insights, best practices, and solutions to common challenges encountered in the industry. The technical guides and handbooks published by ISHRAE are carefully curated to provide up-to-date information on emerging technologies, energy-efficient practices, and industry standards.